CN208112683U - Camera module and its electronic device - Google Patents

Abstract

The utility model discloses a kind of camera module of electronic device and with its electronic device, wherein camera module includes：Filter supporter, filter supporter are equipped with the first through hole for running through it in the thickness direction thereof；Microscope base, microscope base is equipped with the second through-hole for running through it in the thickness direction thereof, second through-hole is opposite with first through hole, microscope base is located in filter supporter, one in filter supporter and microscope base is equipped with the protrusion extended along its circumferential direction, another in filter supporter and microscope base is equipped with the groove with male cooperation, and along the radial direction of microscope base, adhesive layer is equipped between the microscope base and filter supporter outside protrusion.Camera module according to the present utility model, the particle that can prevent the particle in the camera module external world and glue itself from generating enter inside camera module, can be effectively prevented inside camera module due to particle generate it is bad.

Description

Camera module and its electronic device

technical field

The utility model relates to the technical field of electronic devices, in particular to a camera module and an electronic device with the same.

Background technique

In related technologies, the camera module is an important part of the mobile phone. For video products, particles such as dust will have a great impact on the imaging of the system. Controlling the image of particles is the continuous pursuit of camera modules.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. For this reason, the utility model proposes a camera module of an electronic device, which can prevent particles outside the camera module and particles produced by the glue itself from entering the camera module.

The utility model also proposes an electronic device, which includes the camera module of the above-mentioned electronic device.

According to the camera module of the electronic device according to the embodiment of the present invention, it includes: a filter holder, the first through hole passing through it in the thickness direction is arranged on the filter holder; a mirror holder, the mirror holder There is a second through hole passing through it in the thickness direction, the second through hole is opposite to the first through hole, the mirror holder is arranged on the filter holder, and the filter One of the bracket and the mirror base is provided with a protrusion extending along its circumferential direction, and the other of the filter bracket and the mirror base is provided with a groove matching the protrusion, Along the radial direction of the mirror seat, an adhesive layer is provided between the mirror seat outside the protrusion and the filter holder.

According to the camera module of the electronic device according to the embodiment of the present invention, one of the filter holder and the mirror holder is provided with a protrusion extending along its circumferential direction, and the other of the filter holder and the mirror holder There is a groove to match the protrusion, and along the radial direction of the lens base, an adhesive layer is provided between the lens base outside the protrusion and the filter holder, which can prevent the particles outside the camera module from The particles produced by the glue itself enter the camera module, which can effectively prevent the defect caused by the particles inside the camera module.

According to some embodiments of the present invention, the filter holder is provided with a protrusion extending along its circumferential direction, and the mirror base is provided with a groove matching the protrusion.

In some embodiments of the present invention, along the radial direction of the mirror base, the groove is located in the middle of the mirror base.

In some embodiments of the present invention, along the radial direction of the mirror holder, the groove is close to the second through hole.

Further, the groove extends to the inner wall of the second through hole.

According to some embodiments of the present invention, the mirror base is provided with a protrusion extending along its circumferential direction, and the filter holder is provided with a groove matching the protrusion.

In some embodiments of the present invention, along the radial direction of the filter holder, the groove is located in the middle of the filter holder.

In some embodiments of the present invention, along the radial direction of the filter holder, the groove is close to the first through hole.

According to some embodiments of the present utility model, along the radial direction of the mirror base, there are a plurality of protrusions and a plurality of grooves, and the plurality of protrusions and the plurality of grooves are one by one correspond.

According to some embodiments of the present invention, the outer wall surface of the protrusion is in close contact with the inner wall surface of the groove.

According to some embodiments of the present utility model, the cross section of the protrusion is quadrilateral.

According to some embodiments of the present invention, in the direction from the fixed end to the free end of the protrusion, the cross-sectional area of the protrusion decreases gradually.

According to some embodiments of the present invention, the cross-sectional area of the protrusion is constant in the direction from the fixed end to the free end of the protrusion.

According to some embodiments of the present invention, in the direction from the fixed end to the free end of the protrusion, the cross-sectional area of the protrusion gradually increases.

An electronic device according to an embodiment of the present invention includes the above-mentioned camera module of the electronic device.

According to the electronic device of the embodiment of the present invention, one of the filter holder and the mirror holder is provided with a protrusion extending along its circumferential direction, and the other of the filter holder and the mirror holder is provided with a The protrusion fits the groove, and along the radial direction of the lens base, there is an adhesive layer between the lens base outside the protrusion and the filter holder, which can prevent the particles outside the camera module and the glue itself Particles enter the camera module, which can effectively prevent the defect caused by particles inside the camera module.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

1 is a schematic structural diagram of a camera module of an electronic device according to an embodiment of the present invention;

2 is a schematic structural view of a camera module of an electronic device according to another embodiment of the present invention;

3 is a schematic structural diagram of a camera module of an electronic device according to yet another embodiment of the present invention;

4 is a schematic structural diagram of a camera module of an electronic device according to yet another embodiment of the present invention;

5 is a front view of an electronic device according to an embodiment of the present invention;

FIG. 6 is a perspective view of an electronic device according to an embodiment of the present invention.

Reference signs:

electronic device 1000,

camera module 100,

Filter holder 1, first through hole 11, protrusion 12,

Mirror base 2, second through hole 21, groove 22,

adhesive layer 3,

Circuit board 4, chip 5, optical filter 6, lens 7.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

The following describes the camera module 100 of the electronic device 1000 according to the embodiment of the present invention with reference to FIGS. 1-4 .

As shown in FIG. 1 , the camera module 100 includes a circuit board 4 , a chip 5 , a filter holder 1 , a filter 6 , a mirror holder 2 and a lens 7 . The chip 5 is arranged on the circuit board 4 and is connected with the circuit board 4. The filter holder 1 is arranged on the circuit board 4 and is positioned at the side of the chip 5 away from the circuit board 4. The first through hole 11 passing through it in the direction.

Lens 7 is arranged on mirror holder 2, and mirror holder 2 is located on the filter holder 1 and is positioned at the side of filter holder 1 away from circuit board 4, and mirror holder 2 is provided with on its thickness direction through it The second through hole 21, the second through hole 21 is opposite to the first through hole 11, one of the filter holder 1 and the mirror holder 2 is provided with a protrusion 12 extending along its circumferential direction, the filter holder 1 And the other of the mirror holder 2 is provided with a groove 22 that matches the protrusion 12, and along the radial direction of the mirror holder 2, glue is provided between the mirror holder 2 outside the protrusion 12 and the filter holder 1. sticky layer3. Wherein, the protrusion 12 may extend into a ring shape, and correspondingly, the groove 22 may extend into a ring shape.

Wherein the lens 7 is used to gather the light, so that the light is imaged on the chip 5; the mirror holder 2 is used to carry the lens 7, and for the autofocus module, the mirror holder 2 can be an autofocus brake (such as a voice coil motor); the bracket is used for The optical filter 6 is carried; the optical filter 6 is used to filter infrared light; the chip 5 converts the optical image formed by the lens 7 into an electronic signal, and is connected with the circuit through a wire bond (gold wire binding); the component is Cooperating with other components required by the circuit of the chip 5, such as capacitors, resistors, driving the chip 5, etc., the circuit board 4 transmits the signal of the chip 5 to the back-end platform.

In the related art, the structure of the filter holder and the lens holder is combined by glue, so there is actually a certain gap (about 50um) between them. Insufficient airtightness of the glue will cause external particles to enter the module; or due to the variation of the glue itself under the action of time, temperature and process, particles will be produced by itself, etc. After the particles generated in these cases enter the camera, there will be It may affect the imaging of the module, resulting in poor photo effects.

And in the present application, be provided with the protrusion 12 that extends along its circumferential direction on one of the optical filter holder 1 and the mirror holder 2, another one of the optical filter holder 1 and the mirror holder 2 is provided with the protrusion 12 Along the radial direction of the lens base 2 , an adhesive layer 3 is provided between the lens base 2 outside the projection 12 and the filter holder 1 in the groove 22 matched with the projection 12 . The cooperation of the protrusion 12 and the groove 22 forms a stepped surface, which can prevent particles outside the camera module 100 from entering the interior of the camera module 100 through the gap between the lens holder 2 and the filter holder 1 . At the same time, setting the adhesive layer 3 outside the protrusion 12 can prevent the particles produced by the glue itself from entering the interior of the camera module 100 , and can effectively prevent the defect caused by the particles inside the camera module 100 .

According to the camera module 100 of the electronic device 1000 of the embodiment of the present utility model, a protrusion 12 extending along its circumferential direction is provided on one of the filter holder 1 and the mirror holder 2, the filter holder 1 and the lens holder 2 The other one of the mirror holders 2 is provided with a groove 22 matching with the protrusion 12, and along the radial direction of the mirror holder 2, a groove 22 is arranged between the mirror holder 2 outside the protrusion 12 and the filter holder 1. The adhesive layer 3 can prevent the particles outside the camera module 100 and the particles produced by the glue itself from entering the camera module 100 , and can effectively prevent defects inside the camera module 100 caused by particles.

In some embodiments of the present utility model, as shown in Fig. 1-Fig. Groove 22. Since the mirror base 2 is relatively thick, a groove 22 is provided on the mirror base 2 to facilitate the processing of the groove 22 without affecting the structural strength of the mirror base 2 .

Optionally, as shown in FIG. 1 , along the radial direction of the mirror base 2 , the groove 22 is located in the middle of the mirror base 2 . In this way, the structure strength of the mirror base 2 can be avoided to a greater extent, and the working reliability of the mirror base 2 can be improved. Of course, the present invention is not limited thereto. As shown in FIG. 2 , along the radial direction of the mirror holder 2 , the groove 22 is close to the second through hole 21 . Thereby, the contact area between the mirror holder 2 outside the projection 12 and the filter holder 1 can be increased, and the area of the adhesive layer 3 can be increased, thereby increasing the reliability of the connection between the mirror holder 2 and the filter holder 1 .

Further, as shown in FIG. 3 , the groove 22 extends to the inner wall of the second through hole 21 . This not only can increase the contact area between the lens holder 2 outside the projection 12 and the filter holder 1, but also increase the area of the adhesive layer 3, thereby increasing the reliability of the connection between the mirror holder 2 and the filter holder 1, and also facilitates The processing of groove 22 improves production efficiency.

In some embodiments of the present utility model, as shown in FIG. 4 , the mirror base 2 is provided with a protrusion 12 extending along its circumferential direction, and the filter holder 1 is provided with a groove 22 cooperating with the protrusion 12 . Thus, the structural diversity of the camera module 100 can be increased. Further, as shown in FIG. 4 , along the radial direction of the filter holder 1 , the groove 22 is located in the middle of the filter holder 1 . Therefore, the structural strength of the filter holder 1 can be increased, and the working reliability of the filter holder 1 can be improved.

Furthermore, along the radial direction of the filter holder 1 , the groove 22 is close to the first through hole 11 . Thereby, the contact area between the mirror holder 2 outside the projection 12 and the filter holder 1 can be increased, and the area of the adhesive layer 3 can be increased, thereby increasing the reliability of the connection between the mirror holder 2 and the filter holder 1 .

Of course, the present invention is not limited thereto. Along the radial direction of the filter holder 1 , the groove 22 is close to the outer wall of the filter holder 1 . Thus, the diversity of the structure of the camera module 100 can be increased. Further, the groove 22 extends to the outer wall of the filter holder 1 . This makes it possible to simplify the machining process of the recess 22 .

In some embodiments of the present invention, there are multiple protrusions 12 and multiple grooves 22 in the radial direction of the mirror base 2 , and the multiple protrusions 12 correspond to the multiple grooves 22 one by one. In this way, particles outside the camera module 100 and particles generated by the glue itself can be better prevented from entering the camera module 100 , and defects caused by particles inside the camera module 100 can be effectively prevented.

In some embodiments of the present invention, the outer wall of the protrusion 12 is in close contact with the inner wall of the groove 22 . In this way, particles outside the camera module 100 and particles generated by the glue itself can be better prevented from entering the camera module 100 , and defects caused by particles inside the camera module 100 can be effectively prevented. At the same time, the reliability of the connection between the mirror base 2 and the filter holder 1 can be increased.

In some embodiments of the present invention, as shown in FIGS. 1-4 , the cross section of the protrusion 12 is quadrilateral. Correspondingly, the outer contour of the groove 22 is a quadrilateral. This facilitates the machining of the protrusions 12 and recesses 22 . Of course, the present invention is not limited thereto, and the cross-section of the protrusion 12 can also be other polygons.

In some embodiments of the present invention, in the direction from the fixed end to the free end of the protrusion 12, the cross-sectional area of the protrusion 12 decreases gradually, or in the direction from the fixed end to the free end of the protrusion 12, the protrusion The cross-sectional area of the protrusion 12 is constant, or the cross-sectional area of the protrusion 12 gradually increases in the direction from the fixed end to the free end of the protrusion 12 . In this way, the variety of structures of the protrusion 12 can be increased to meet different demands.

The following describes an electronic device 1000 according to an embodiment of the present invention with reference to FIGS. 1-6 .

An electronic device 1000 according to an embodiment of the present invention includes the above-mentioned camera module 100 . The camera module 100 may be at least one of the front camera module and the rear camera module of the electronic device 1000 . That is to say, the front camera module can be the above camera module 100 , the rear camera module can be the above camera module 100 , and both the front camera module and the rear camera module can be the above camera module 100 .

According to the electronic device 1000 of the embodiment of the present invention, one of the filter holder 1 and the mirror holder 2 is provided with a protrusion 12 extending along its circumferential direction, the filter holder 1 and the mirror holder 2 The other is provided with a groove 22 matching with the protrusion 12, and along the radial direction of the mirror base 2, an adhesive layer 3 is provided between the mirror base 2 outside the protrusion 12 and the filter holder 1, It can prevent the particles outside the camera module 100 and the particles produced by the glue itself from entering the camera module 100 , and can effectively prevent defects caused by particles inside the camera module 100 .

In some embodiments of the present invention, the camera module 100 is located in the middle of the upper part of the electronic device 1000 , thereby increasing the aesthetics of the electronic device 1000 .

As used herein, "electronic device 1000" (or "communication terminal", simply "terminal") includes, but is not limited to, configured to connect via a wired line (such as via a public switched telephone network (PSTN), digital (DSL), digital cable, direct cable connection, and/or another data connection/network) and/or via (for example, for cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks , AM-FM broadcast transmitter, and/or a device for receiving/transmitting communication signals through a wireless interface of another communication terminal. Communication terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" and/or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; may include radiotelephones, pagers, Internet/Intranet access , a PDA with a Web browser, organizer, calendar, and/or Global Positioning System (GPS) receiver; and a conventional laptop and/or palm-type receiver or other electronic device 1000 including a radiotelephone transceiver.

In the embodiment of the present application, the electronic device 1000 may be various devices capable of obtaining data from the outside and processing the data, or the electronic device 1000 may be a variety of devices with built-in batteries and capable of obtaining current from the outside to The device on which the battery is charged, for example, a mobile phone, a tablet computer, a computing device or an information display device, etc.

The electronic device 1000 applicable to this application is introduced by taking a mobile phone as an example. In the embodiment of the present application, the mobile phone may include components such as a radio frequency circuit, a memory, an input unit, a wireless fidelity (WiFi, wireless fidelity) module, a display unit, a sensor, an audio circuit, a processor, a projection unit, a camera unit, and a battery.

The radio frequency circuit can be used to receive and send signals during the process of sending and receiving information or talking. In particular, after receiving the downlink information of the base station, it is processed by the processor; in addition, the uplink data of the mobile phone is sent to the base station. Typically, radio frequency circuitry includes, but is not limited to, an antenna, at least one amplifier, transceiver, coupler, low noise amplifier, duplexer, and the like. In addition, radio frequency circuits can also communicate with networks and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to Global System for Mobile Communications (GSM, Global System for Mobile communication), General Packet Radio Service (GPRS, General Packet Radio Service), Code Division Multiple Access (CDMA, Code Division Multiple Access), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), Long Term Evolution (LTE, Long Term Evolution), email, Short Message Service (SMS, Short Messaging Service), etc.

Wherein, the memory can be used to store software programs and modules, and the processor executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); The data created by the use (such as audio data, phone book, etc.) and so on. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The input unit can be used to receive input numbers or character information, and generate key signals related to user settings and function control of the mobile phone. Specifically, the input unit may include a touch panel and other input devices. The touch panel, also known as the touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel or near the touch panel by using any suitable object or accessory such as a finger, a stylus), And drive the corresponding connection device according to the preset program. Optionally, the touch panel may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the To the processor, and can receive the command sent by the processor and execute it. In addition, various types of touch panels, such as resistive, capacitive, infrared, and surface acoustic wave, can be used to realize the touch panel. In addition to the touch panel, the input unit may also include other input devices. Specifically, other input devices may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

Wherein, the display unit can be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit may include a display panel, and optionally, the display panel may be configured in the form of a liquid crystal display unit (LCD, Liquid CrystalDisplay), an organic light-emitting diode (OLED, Organic Light-Emitting Diode), or the like. Further, the touch panel can cover the display panel. When the touch panel detects a touch operation on or near it, it will be sent to the processor to determine the type of the touch event, and then the processor will display the touch event on the display panel according to the type of the touch event. Provide corresponding visual output.

Wherein, the position in the display panel outside the visual output that can be recognized by the human eyes may be referred to as a "display area" described later. The touch panel and the display panel can be used as two independent components to realize the input and output functions of the mobile phone, or the touch panel and the display panel can be integrated to realize the input and output functions of the mobile phone.

In addition, the mobile phone may further include at least one sensor, such as an attitude sensor, a light sensor, and other sensors.

Specifically, the attitude sensor can also be called a motion sensor, and as one of the motion sensors, a gravity sensor can be cited. The gravity sensor uses elastic sensitive elements to make a cantilever displacement device, and uses an energy storage device made of elastic sensitive elements. The spring drives the electrical contact, so as to convert the change of gravity into the change of electrical signal.

As another type of motion sensor, an accelerometer sensor can be cited. The accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the application of mobile phone posture ( Such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.

In the embodiment of the present application, the above-listed motion sensor can be used as the element for obtaining the "attitude parameter" described later, but it is not limited thereto. Other sensors capable of obtaining the "attitude parameter" all fall within the protection scope of the present application. For example, a gyroscope, etc., and the working principle and data processing process of the gyroscope may be similar to those of the prior art, and here, in order to avoid redundant description, the detailed description thereof is omitted.

In addition, in the embodiment of the present application, other sensors such as a barometer, a hygrometer, a thermometer, and an infrared sensor may also be configured as sensors, which will not be repeated here.

The light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel according to the brightness of the ambient light, and the proximity sensor can turn off the display panel and/or the backlight when the mobile phone is moved to the ear.

Audio circuitry, speakers and microphones provide the audio interface between the user and the phone. The audio circuit can transmit the electrical signal converted from the received audio data to the speaker, and the speaker converts it into a sound signal output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is converted into an audio signal after being received by the audio circuit After the audio data is output to the processor for processing, it can be sent to another mobile phone through the radio frequency circuit, or the audio data can be output to the memory for further processing.

WiFi is a short-distance wireless transmission technology. The mobile phone can help users send and receive emails, browse the web, and access streaming media through the WiFi module. It provides users with wireless broadband Internet access. However, it can be understood that it is not an essential component of the mobile phone, and can be completely omitted according to needs within the scope of not changing the essence of the utility model.

The processor is the control center of the mobile phone. It uses various interfaces and lines to connect various parts of the entire mobile phone. By running or executing software programs and/or modules stored in the memory, and calling data stored in the memory, it executes various functions of the mobile phone. Various functions and processing data, so as to monitor the mobile phone as a whole. Optionally, the processor may include one or more processing units; preferably, the processor may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs, etc., and the modulation The demodulation processor mainly handles wireless communication.

It can be understood that the foregoing modem processor may not be integrated into the processor.

In addition, the processor may serve as an implementation element of the above-mentioned processing unit, and perform the same or similar functions as the processing unit.

Cell phones also include a power source (such as a battery) that powers various components.

Preferably, the power supply can be logically connected to the processor through the power management system, so that functions such as charging, discharging, and power consumption management can be realized through the power management system. Although not shown, the mobile phone may also include a Bluetooth module, etc., which will not be repeated here.

It should be noted that the mobile phone is only an example of a terminal device, which is not particularly limited in this application, and can be applied to electronic devices such as mobile phones and tablet computers, and is not limited in this application.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the application is defined by the claims and their equivalents.

Claims (15)

1. A camera module of an electronic device, comprising: A filter holder, the filter holder is provided with a first through hole passing through it in its thickness direction; A mirror base, the mirror base is provided with a second through hole passing through it in its thickness direction, the second through hole is opposite to the first through hole, and the mirror base is arranged on the filter holder On, one of the filter holder and the mirror holder is provided with a protrusion extending along its circumferential direction, and the other of the filter holder and the mirror holder is provided with the Along the radial direction of the mirror base, the protrusion fits into the groove, and an adhesive layer is provided between the mirror base outside the protrusion and the filter holder. 2. The camera module of an electronic device according to claim 1, wherein the filter holder is provided with a protrusion extending along its circumferential direction, and the mirror holder is provided with a protrusion corresponding to the protrusion. Matching grooves. 3 . The camera module of an electronic device according to claim 2 , wherein, along the radial direction of the mirror base, the groove is located at a middle part of the mirror base. 4 . 4 . The camera module of an electronic device according to claim 2 , wherein, along the radial direction of the mirror holder, the groove is close to the second through hole. 5 . The camera module of an electronic device according to claim 4 , wherein the groove extends to an inner wall of the second through hole. 6. The camera module of an electronic device according to claim 1, wherein the mirror base is provided with a protrusion extending along its circumferential direction, and the filter holder is provided with a protrusion corresponding to the protrusion. Matching grooves. 7 . The camera module of an electronic device according to claim 6 , wherein, along the radial direction of the filter holder, the groove is located at a middle part of the filter holder. 8 . The camera module of an electronic device according to claim 6 , wherein, along the radial direction of the filter holder, the groove is close to the first through hole. 9. The camera module of an electronic device according to claim 1, wherein, along the radial direction of the mirror base, there are a plurality of protrusions, a plurality of grooves, and a plurality of said grooves. The protrusions are in one-to-one correspondence with the plurality of grooves. 10 . The camera module of an electronic device according to claim 1 , wherein the outer wall of the protrusion is in close contact with the inner wall of the groove. 11 . 11. The camera module of an electronic device according to any one of claims 1-10, wherein the protrusion has a quadrangular cross section. 12. The camera module of an electronic device according to any one of claims 1-10, characterized in that, in the direction from the fixed end of the protrusion to the free end, the cross-sectional area of the protrusion gradually decreases Small. 13. The camera module of an electronic device according to any one of claims 1-10, characterized in that, in the direction from the fixed end of the protrusion to the free end, the cross-sectional area of the protrusion remains unchanged . 14. The camera module of an electronic device according to any one of claims 1-10, characterized in that, in the direction from the fixed end of the protrusion to the free end, the cross-sectional area of the protrusion gradually increases big. 15. An electronic device, comprising the camera module of the electronic device according to any one of claims 1-14.